First, according to the wiring type, there are two kinds of commonly used solenoid valve wiring, lead type and junction box type, and the principle is the same. In fact, the lead type is to unplug the junction box and connect a power cord from the inside of the coil to make it integrated;
1, lead type; It is mostly used for waterproof and explosion-proof (flame-proof) type. The advantage is that the wire can be directly connected to the control system, but the disadvantage is that if it is far from the control system, new wiring will be added;
2, junction box type; At present, this connection method is the most widely used, and DIN connector is adopted, so that the control system is not affected no matter how far it is, with no interruption in the middle and no additional nodes.